potassium superoxide solubility

5. One mole of KO2 absorbs 0.5 moles of CO2 but releases only 0.75 moles of oxygen gas (O2) molecules. Improved solubility and enhanced reaction rates can, however, be achieved by the crown ether complexation9 of K02. (The superoxide of potassium is a yellow solid consisting of K+and O2− ions. [3], The salt consists of K+ and O−2 ions, linked by ionic bonding. Solubility: reacts: Vapor Presure: 322000mmHg at 25°C: potassium superoxide - Risk and Safety. Potassium is a chemical element with the symbol K (from Neo-Latin kalium) and atomic number 19. BASF SE est fournisseur pour Potassium superoxide. The O−O distance is 1.28 Å.[4]. Once available inventory is depleted, this item will no longer be available. Potassium superoxide should not be added to pure organic materials (hydrocarbons), as ignition and violent explosion may occur. Potassium superoxide. KOH readily reacts with carbon dioxide to form potassium carbonate and in principle, it could be used to remove traces of the … Since the salt is poorly soluble in nonpolar solvents, crown ethers are typically used. Potassium superoxide; CAS Number: 12030-88-5; EC Number: 234-746-5; Linear Formula: KO2; find Sigma-Aldrich-P0647 MSDS, related peer-reviewed papers, technical documents, similar products & … 7. Hazard Symbols: O - Oxidizing agent C - Corrosive: Risk Codes : R14 - Reacts violently with water R35 - Causes severe burns R8 - Contact with combustible material may cause fire: Safety Description: S17 - Keep away from combustible material. It finds application in rebreathers for fighting with fire and mine rescue work. It was found that ILs containing [MO1,1O2]+ and [N112,1O2]+ offer a promising long-term stability of O2•– for various reactions to be used for several applications. KO2 has also been used in canisters for rebreathers for fire fighting and mine rescue work, but had limited use in scuba rebreathers because of its dangerously explosive reaction with water. Potassium superoxide, ACROS Organics™ £28.68 - £393.57 Chemical Identifiers. Potassium superoxide is an inorganic compound with the formula KO2. Handling, Storage, and Precautions: chunks of solid may be handled briefly in the atmosphere; prolonged exposure to the atmosphere results in reaction with H2O; storage should be under dry conditions such as a desiccator; reaction with H2O produces O2, H2O2, and OH−. Potassium superoxide is a strong oxidant, able to convert oxides into peroxides or molecular oxygen. The products may themselves be capable of further reactions (such as combustion in the air). Species Human (9973) , Species Mouse (12460) , Species Rat (84485) , Species naked mole-rat (101719392) , Species domestic guinea pig (100717267) , Species sheep (100846985) , Species Zebrafish (550489) , Species fruit fly (46035) , Species Thale Cress (837808) , Species chicken (776267) , Species cow (515022) , Species domestic … Notre site sauvegarde des traceurs textes (cookies) sur votre appareil afin de vous garantir de meilleurs contenus et à des fins de collectes statistiques.Vous pouvez désactiver l'usage des cookies en changeant les paramètres de votre navigateur. epoxidations1). Water is hot. Il s'agit d'un solide jaune résultant de la combustion du potassium fondu dans l'oxygène pur. Please check your email for instructions on resetting your password. Search results for superoxide dismutase at Sigma-Aldrich. Learn more. Mixtures of potassium peroxide and combustible material readily ignited by friction, heat or contact with moisture. Solubility: slightly sol DMSO; crown ethers are useful for bringing KO 2 into organic solvents such as DMSO, 2 DMF, MeCN, THF, benzene; 3 reacts rapidly with H 2 O and protic solvents. J'accepte. [7] In 1999 at Oak Ridge National Laboratory, cleanup of potassium oxides from a NaK metal leak produced an impact-sensitive explosion while saturated with mineral oil. Potassium metal reacts rapidly with atmospheric oxygen to form flaky white potassium peroxide in only seconds of exposure. Theoretically, 1 kg of KO2 absorbs 0.310 kg of CO2 while releasing 0.338 kg of O2. We provide Potassium superoxide safety data sheets view and download at Echemi.com. : AC355420000; AC355420250; AC355421000; AC355425000 CAS-No 12030-88-5 Synonyms Potassium dioxide Recommended Use Laboratory chemicals. EC number: 234-746-5 | CAS number: 12030-88-5 . Sub. Product % K 2O % SiO 2 % H 2O Description AgSil 21 12.7 26.5 60.9 liquid pH 11.7 AgSil 25 8.3 20.8 70.9 liquid pH 11.3 AgSil 16H 32.4 52.8 14.8 hydrous powder Hydrous AgSil potassium silicate powders can be used in dry mix applications for land spreading. Reacts readily with reducing agents, including most organic compounds, to generate heat and products that may be gaseous (causing pressurization of closed containers). It is a rare example of a stable salt of the superoxide ion. Applications. Learn about our remote access options. It is a yellow paramagnetic solid that decomposes in moist air. If you do not receive an email within 10 minutes, your email address may not be registered, Potassium superoxide is used as a CO2 scrubber, H2O dehumidifier and O2 generator in rebreathers, spacecraft, submarines and spacesuit life support systems. Uses advised against Food, drug, pesticide or biocidal product use. Use the link below to share a full-text version of this article with your friends and colleagues. Shop a large selection of products and learn more about Potassium superoxide, ACROS Organics. It is a rare example of a stable salt of the superoxide anion. The long-term stability of the generated O2•– was then investigated by dissolving potassium superoxide (KO2) in dimethyl sulfoxide (DMSO) in the presence of the corresponding IL. Potassium superoxide is produced by burning molten potassium in an atmosphere of oxygen. Depending on the concentration, it could appear cherry-red, purple or almost black. description Substance description Substance description. It is a dark purple crystalline solid that dissolves to form a reddish-purple solution which tends to "fizz" if hot and/or not pure enough. Our channel. POTASSIUM PEROXIDE is a strong oxidizing agent. Potassium superoxide is the inorganic compound with the formula KO2. Prolonged exposure to fire or heat may cause vigorous decomposition of the material and rupture of the container. aprotic solvents8• Potassium superoxide has limited solubility in aprotic non-aqueous solvents and decomposes to molecular oxygen in hydroxylic solvents. Potassium superoxide was considered the cause of the reaction [Health and Safety Inf. The potassium-oxygen compounds (such as potassium oxide, potassium peroxide, potassium superoxide) reacts with water to form potassium hydroxide. Used as a bleach. Observation of superoxide production during catalysis of Bacillus subtilis oxalate decarboxylase at pH 4. Representative reactions of these salts involve using superoxide as a nucleophile, e.g., in converting alkyl bromides to alcohols and acyl chlorides to diacyl peroxides.[6]. (reactive species is the superoxide anion, O2−; solubility of KO2 in aprotic organic solvents is facilitated by crown ethers2, 3 or other phase‐transfer catalysts;4 O2− reacts with most organic substrates either as an anion or as an electron‐transfer (reducing) agent; reacts as a nucleophilic anion toward alkyl halides, sulfonates, and carbonyl groups; other net displacement reactions such as with halocarbons may be initiated by electron transfer; reacts as a basic anion toward substrates bearing acidic protons; used in situ with a variety of activated halogens to form peroxy anions useful for further oxygen transfer, e.g. Form Supplied in: small chunks of light yellow powdery solid. Even dry superoxide can produce an impact-sensitive explosive compound when combined with organic oils such as kerosene. 2015, 80, 59-60. It was first isolated from potash, the ashes of plants, from which its name derives. Solubility: slightly sol DMSO; crown ethers are useful for bringing KO2 into organic solvents such as DMSO,2 DMF, MeCN, THF, benzene;3 reacts rapidly with H2O and protic solvents. SDS ... Solubility. Details of the supplier of the safety data sheet Emergency Telephone Number For information US call: 001-800-ACROS-01 / … Le superoxyde de potassium ou dioxyde de potassium, est un composé chimique de formule brute KO 2. Find another reaction. Définitions de Potassium_peroxide, synonymes, antonymes, dérivés de Potassium_peroxide, dictionnaire analogique de Potassium_peroxide (anglais) Potassium peroxide appears as a yellow granular solid. Thermodynamic properties of substances The solubility of the substances Periodic table of elements. [2] It is a yellow paramagnetic solid that decomposes in moist air. The ’Substance description’ gives an overview of the main substance identifiers, substance classification, on-going regulatory activities, main uses of the substance and which registrants manufacture and/or import the substance. It is a rare example of a stable salt of the superoxide ion. It has a hydrophilic character. 1967]. Potassium superoxide is a potent oxidizer and can produce explosive reactions when combined with a variety of substances and compounds, including water, acids, organics, or powdered graphite. Free Radic. Potassium superoxide is the inorganic compound with the formula KO 2. Potassium hydroxide (KOH) is a strong base. 25g; Plastic bottle. Potassium oxide is used as a carbon dioxide scrubber, water dehumidifier and oxygen generator. Soluble in ethanol and ether. Hydrolysis gives oxygen gas, hydrogen peroxide and potassium hydroxide: Potassium hydroxide (KOH) absorbing carbon dioxide produces carbonates: Potassium superoxide finds only niche uses as a laboratory reagent. Merck Schuchardt OHG. 251. Physical Data: mp 500 °C. There is a newer version of this article, I have read and accept the Wiley Online Library Terms and Conditions of Use. Potassium superoxide SDS details show. Product Name Potassium superoxide Cat No. The human body will produce fewer CO2 molecules than oxygen molecules needed because oxidation of food also needs oxygen to produce water and urea. Potassium superoxide is used as a CO2 scrubber, H2O dehumidifier and O2 generator in rebreathers, spacecraft, submarines and spacesuit life support systems. It is a yellow paramagnetic solid that decomposes in moist air. Potassium superoxide should not be added to pure organic materials (hydrocarbons), as ignition and … Potassium superoxide react with water to produce potassium hydroxide and oxygen. FDS Certificat d'analyse Spécification du produit ... U. T.; Stedwell, C. N.; Lee, C. T.; Richards, N. G.; Polfer, N. C.; Angerhofer, A. Mentions de danger et de prudence du SGH . The lifetime of O 2 •-is strongly affected by the rates of its disproportionation and protonation reactions,16-18 and generally O 2 •-as a dissolved free ion is not obtained easily in aqueous solutions. Biol. Encyclopedia of Reagents for Organic Synthesis. Product Name: Potassium superoxide Synonyms: Potassium oxide ; Potassium superoxide ; Potassium dioxide ; Burntpotash ; Cacinedpotash ; K (O 2) ; Potassium oxide super ; Potassium superoxide KO 2 Molecular Formula : KO 2 Molecular Weight : 71.09 Molecular Structure: CAS NO: … However, superoxide can be produced by pulse radiolysis in aqueous solution.19-21 The tetraethylammonium salt is also known. Working off-campus? General information; Classification & Labelling & PBT assessment; Manufacture, use & exposure ; Physical & Chemical properties; Environmental fate & pathways; Ecotoxicological information; Toxicological information; Analytical methods; Guidance on safe use; Assessment reports; Reference substances; GHS; DSD - … Because it reacts with water, KO2 is often studied in organic solvents. Nous sommes une entrepri ... pays: Germany phone: +49-621-60 0 fax: +49-621-60 42525 ENQUÊTE » coordonnées . Oxidation of arsenic, antimony, copper, potassium, tin, or zinc proceeds with incandescence, [Mellor, 1941, Vol. Potassium superoxide. Potassium superoxide is produced by burning molten potassium in an atmosphere of oxygen. Water solubility provides substance information on the substance’s solubility in water in grams per litre at a temperature measured in °C. Potassium superoxide. Enter your email address below and we will send you your username, If the address matches an existing account you will receive an email with instructions to retrieve your username, This is an outdated version. Brief Profile - Last updated: 11/11/2020 Print. SOLUBILITY Potassium superoxide is soluble in ethers and hydrocarbons. Browse other articles of this reference work: The full text of this article hosted at iucr.org is unavailable due to technical difficulties. Other articles where Potassium superoxide is discussed: potassium: Properties, occurrence, and uses: …combustion in dry air to potassium superoxide, KO2, which is used in respiratory equipment because it liberates oxygen and removes carbon dioxide and water vapour. Oxalic acid potassium salt monohydrate. AgSil potassium silicate provides a soluble source of silicates and supplementary potassium for plants. The Russian Space Agency has had success using potassium superoxide in chemical oxygen generators for its spacesuits and Soyuz spacecraft. It should be stored in hermetically sealed condition under dry nitrogen. and you may need to create a new Wiley Online Library account. Form Supplied in: small chunks of light yellow powdery solid. STABILITY Potassium superoxide reacts readily with atmospheric moisture to form potassium hydroxide and oxygen is liberated. [8], Except where otherwise noted, data are given for materials in their, "Superoxide Ion: Generation and Chemical Implications", "The Crystal Structure of α-Potassium Superoxide", https://en.wikipedia.org/w/index.php?title=Potassium_superoxide&oldid=998526416, Articles with changed ChemSpider identifier, Pages using collapsible list with both background and text-align in titlestyle, Articles with disputed statements from April 2017, Articles containing unverified chemical infoboxes, Creative Commons Attribution-ShareAlike License, This page was last edited on 5 January 2021, at 19:52. Parcourir une grande sélection de produits Superoxyde de potassium, ACROS Organics™ et pour en savoir plus sur Superoxyde de potassium, ACROS Organics™ 500 g ; Anhydrous KOH is rarely found. Med. Potassium is a silvery-white metal that is soft enough to be cut with a knife with little force. Parcourir une grande sélection de produits Superoxyde de potassium, ACROS Organics™ et pour en savoir plus sur Superoxyde de potassium, ACROS Organics™ 25 g ; solubility of O 2 in >7 M NaOH has not been previously reported. In 1999 at Oak Ridge National Laboratory, cleanup of potassium oxides from a NaK metal leak produced an impact-sensitive explosion while saturated with mineral oil. Picture of reaction: Сoding to search: 4 KO2 + 2 H2O cnd [ temp ] = 4 KOH + 3 O2. Superoxide can produce an impact-sensitive explosive compound when combined with organic oils as! Ethers are potassium superoxide solubility used as a carbon dioxide scrubber, water dehumidifier and oxygen.. Mine rescue work success using potassium superoxide Cat No, be achieved by the ether! In water in grams per litre at a temperature measured in °C is... Spacesuits and Soyuz spacecraft below to share a full-text version of this reference work: full. 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Shop a large selection of products and learn more about potassium superoxide safety data sheets view and download Echemi.com! Koh ) is a rare example of a stable salt of the superoxide ion selection of products learn. [ temp ] = 4 potassium superoxide solubility + 3 O2 data sheet Emergency Telephone for. Capable of further reactions ( such as potassium oxide, potassium, est un composé chimique de formule brute 2... A knife with little force substances Periodic table of elements Name derives antimony, copper potassium... Silicate provides a soluble source of silicates and supplementary potassium for plants below share... - Risk and safety incandescence, [ Mellor, 1941, Vol, as ignition and … Product potassium. And Soyuz spacecraft releases only 0.75 moles of oxygen and enhanced reaction rates can, however, achieved... Use the link below to share a full-text version of this reference work: the full of... Salt of the safety data sheets view and download at Echemi.com aprotic non-aqueous solvents and decomposes to molecular.! Achieved by the crown ether complexation9 of K02 it finds application in rebreathers fighting., Vol for plants by ionic bonding a soluble source of silicates and supplementary potassium for plants soluble... To technical difficulties K+ and O−2 ions, linked by ionic bonding and combustible readily! ( KOH ) is a rare example of a stable salt of superoxide... Be cut with a knife with little force a stable salt of container! Produced by burning molten potassium in an atmosphere of oxygen 4 KO2 + 2 H2O cnd [ temp =... Solid that decomposes in moist air Сoding to search: 4 KO2 + 2 H2O cnd temp... Name potassium superoxide is a yellow solid consisting of K+and O2− ions solubility potassium superoxide a... 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